1) dc
2) ac
Because my dad said so
A. 20m/s because the unit for velocity is m/s
Two factors that determine where an organism lives in an aquatic ecosystem are temperature<span> and oxygen. 2. Compare the </span>littoral zone<span> of a lake with the </span>benthic zone<span> of a lake. </span>Littoral zone<span> is near the shore and aquatic life is diverse and abundant.
</span>
Answer:
1] 8500000 = <u>8.5 × 10⁶</u>
2] .000072 = <u>7.2 × 10⁻⁵</u>
3] 5.3 × 10⁴ = <u>53000</u>
4] 2.8 × 10⁻³ = <u>0.0028</u>
5] Velocity = 
V = 
<u>V = 5 m/s</u>
6] Acceleration = 
A = 
A = 
<u>A = 3 m/s²</u>